beremiz

Catch 'clipboard already open' errors in editors

2018-06-27, Andrey Skvortsov
32445e3c9cfc
Catch 'clipboard already open' errors in editors

Apparently following commits have not fixed the problem completely,
because it still happens (although not so often).

changeset: 2019:b8f795bdfe9f
user: Andrey Skvortsov
date: Fri May 25 17:40:29 2018 +0300
summary: fix hangs on mouse selection in case if wxPython uses wxWidgets with GTK3+ support

changeset: 2018:5ce6d08ff2c7
user: Andrey Skvortsov
date: Fri May 25 17:23:15 2018 +0300
summary: make clipboard open minimal time as wxPython documentation recommends
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz.
# See COPYING file for copyrights details.
from __future__ import absolute_import
import os
from lxml import etree
import util.paths as paths
from plcopen.structures import StdBlckLibs
ScriptDirectory = paths.AbsDir(__file__)
class XSLTModelQuery(object):
""" a class to handle XSLT queries on project and libs """
def __init__(self, controller, xsltpath, ext=None):
# arbitrary set debug to false, updated later
self.debug = False
# merge xslt extensions for library access to query specific ones
xsltext = [
("GetProject", lambda *_ignored:
[controller.GetProject(self.debug)]),
("GetStdLibs", lambda *_ignored:
[lib for lib in StdBlckLibs.values()]),
("GetExtensions", lambda *_ignored:
[ctn["types"] for ctn in controller.ConfNodeTypes])
]
if ext is not None:
xsltext.extend(ext)
# parse and compile. "beremiz" arbitrary namespace for extensions
self.xslt = etree.XSLT(
etree.parse(
os.path.join(ScriptDirectory, xsltpath),
etree.XMLParser()),
extensions={("beremiz", name): call for name, call in xsltext})
def _process_xslt(self, root, debug, **kwargs):
self.debug = debug
res = self.xslt(root, **{k: etree.XSLT.strparam(v) for k, v in kwargs.iteritems()})
# print(self.xslt.error_log)
return res
# -------------------------------------------------------------------------------
# Helpers functions for translating list of arguments
# from xslt to valid arguments
# -------------------------------------------------------------------------------
def _StringValue(x):
return x
def _BoolValue(x):
return x in ["true", "0"]
def _translate_args(translations, args):
return [translate(arg[0]) if len(arg) > 0 else None
for translate, arg in
zip(translations, args)]